Construction of towers.



G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT. 6. 1916 1,299,261 Patented Apr. 1,1919.

5 SHEETS-SHEET I. #7 JZ G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT. 6. 1916.

1,299,261 JZ Patented Apr. 1,1919.

7 47 5 SHEETS-SHEET 2. yyz. Q 0 55 7 V JJ J A Z4 "7 f 3 I25 7 ZZ I 55 0nJZL l mue/wtoz G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT. 6. 1916.

1,Q99,261. Patented Apr. 1, 1919.

5 SHEETSSHEET 3.

anuewtoq,

Gi i-12gb attozwm G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT; 6. 1916.

1,299,261, Patented Apr. 1,1919.

5 SHEETS-SHEET 4.

.4. Z ya? 3 I I F m it G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

- I APPLICATION Fl-LED S-EPT.6|19\6. 1,299,261, Patented Apr. 1,1919.

5 SHEETSS.HEET 5- Cl D D O T nrnn oration.

GEORGE R. TAYLOR, OF URBANA, ILLINOIS, ASSIGNOR OF ONE-HALF T0 SPENCERE.

- I HUFF, OF URBANA, ILLINOIS.

CONSTRUCTION OF TOWERS.

Specification of Letters Patent.

Patented Apr. 11, rate.

Application filed September 6, 1916. Serial No. 118,728.

I be carried from the ground to the top of the,

" structure in the course of erection. As is carry on the work. Thesetowers or shafts are increased in height as'the height of the structureincreases and it is customary to add to the structure from the top,thereby making it necessary for the men to work in a dangerous position.

Therefore, in carrying out the "present invention, it is my purpose toprovide a tower or shaft of the class described which may be increasedin height, (as the height of the structure being erected increases,)from the base of the tower, thereby enabling the tower to b built upfrom the bottom in contradistinction to building from the top, therebyenabling the shaft tobe erected with comparative safety.

Another object of the invention is the erec- "tion of a shaft or towerof the type described which will embody inits construction, among otherfeatures, a stationary base section and a movable section within thebase section adapted to be elevated therein, in combination with acarrier mounted within the base section below the movable section andadapted to be elevated to elevate the movable section, and holding meansdesigned to automatically engage the elevated movable section so thatthe carrier may be returned to th bottom of the base section and anothermovable section inserted between the elevated movable section and thecarrier and se cured to the first movable section so that both sectionsmay be elevated simultaneously to increase the height of the carrier,these additional movable sections being added whenever it is desired ornecessary to increase the height of the shaft or tower to keep pace withthe erection of the structure.

In the accompanying drawings:

Figure 1 is a view in side elevation of an extensible tower or shaftconstructed in accordance with the present invention.

Fig. '2 1s a similar view taken at right angles to Fig. 1.

Fig. 3- is a horizontal sectional view on the line 3-3 of Fig. 1, partsbeing shown in top plan.

I Fig. 4. is a similar view on the line 44 of Fig. 1.

Fig. 5 is a longitudinal sectional view through the cable drums andassociated parts.

Fig. 6 is an enlarged detail view of the automatic dumping'means for thebucket.

Fig. 7 is a collective view.

Fig. 8 is a detail view showing pawl and ratchet mechanism for retainingthe winding shaft.

Fig. 9 is a detail view showing a device for temporarily retaininganelevated tower section independently of the elevating means. v

Referring now to the drawings in detail, 1 designates a base andupstanding from the base 1 is the stationary or base section 2 of thetower. This-base section is substantially rectangularin horizontalsection and embodies vertical beams 3 having the lower ends suitablysecured to the base 1 and the upper ends interconnected by means ofcross beams 4 appropriately connected to the vertical beams 3 andcoacting therewith to form the base section of the tower. In the pres--ent instance, the vertical beams 3 are of angle iron cross section soas to-form guides for the inner movable section of tne tower. Mountedwithin the base section 2 and capable of vertical sliding movementtherein is an inner movable section 5 embodying ver tical bars 6arranged in juxtaposition to the angle beams 3 respectively of the basesection, and top and bottom cross bars 7 interconnecting the verticalbars 6 at the upper and lower ends thereof and cooperating therewith toform the movable section of the tower. The vertical bars 6 arepreferably of angle iron cross section, while the bottom bars 7 on eachside oi the inner sectionare connected to each other by means ofdiagonal brace rods 8 that intersect each other,

lying ends of the top bars 7 are formed with openings 11 alining witheach other and with the opening 10, and the lower end of each verticalbar 6 is formed w1th a pm 12 designed to project through the aliningtical legs of right an openings 10 and 11 in the bars of the next lowerinnermost section so that as the innermost sections are assembled toincrease the height of the tower, such sections will beedectivelysecured together. This construction of thebars is clearlyillustrated in Fig. 7 of the drawings. The ends of the diagonal bracerods 8 are preferably formed with hooks and are adapted to pass throughthe openings in the top and bottom bars of the sections below and abovethe particular section and overlap the corresponding ends of the bracebars of such "bottom and top sections in order to cooperate with the pinand opening construction illustrated in Fig. 7 to hold the innersections in tower formation and enable such assembled ier sections to bemoved as a unit to increase the height of the tower.

Arranged within the base section 2 and adapted for vertical movementtherein is a carrier 13 in the form of a rectangular frame and securedto the frame at the corners thereof are roller guide shoes 14 thatengage the vertical beams 3 respectivelyof the base section tofacilitate the vertical movement of the carrier. This carrier isinterposed between'the lower end of the bottom inner section and thebase 1 and normally rests upon the base 1 and is adapted for verticalmovement to elevate the inner section and move.

.such inner section through the upper end of the base section to aheight substantially equal to the length of the base section. has tenedto the respective beams 3 of the base section are bearing brackets 15and pivoted within the bearing brackets 15 are the verar levers 16. Thehorizontal legs of t ese levers 16 bear against the respective verticalbars 6 of the inner section resting upon the carrier 13 and as the innersection is moved upwardly under the action of the carrier, the er endsotthe horizontal legs of the levers 16 rub over the vertical bars of theinner section. When the inner section reaches the limit of its upwardmovement within the stationary section under the action of the carrierthe horizontal legs of the levers 16 drop beneath ot' the carrier. Thecarrier may now. be lowered and another section placed in the basesection between the previously elevated inner section andthe carrier,and secured to the previously elevated inner section in a mannerhereinbefore described. After the securing of the bottom inner section,the carrier is again elevated so that both inner sections are movedupwardly to increase the length of the shaft or tower, the horizontallegs of the levers 16 engaging beneath the lower ends of the bottominner section when such section has been moved tothe upper end. of thestationary section, thereby permitting the carrier to be again lowagaininserted. Thus, the tower may be I ered so that another inner sectionmay beincreased in height by the addition of more inner sections at thebottom or base of the tower in contradistinction to the top as is nowdone.

Secured to opposite sides of each inner section 5 are vertical tracks 17arranged in line with thetracks on the respective sides of the otherinner sections and slidably mounted upon these tracks 17 is a frame 18embodying vertical bars and the top cross bar connected to the verticalbars at the upper ends thereof. Pivotally connected to the vertical barsof the frame 18 and arranged Within such frame is a bucket or cage 19and secured to opposite sides of the bucketor cage 19 are spring tongues20 having the ends thereof adjacent to the side bars of the frame 18formed with outwardly projecting lugs 21 that engage such bars to holdthe bucket or cage in normal position and prevent tilting thereof.Secured to opposite sides of the bucket 19 adjacent to the dischargeedge of the bucket are outwardly projecting axially alining trurmions'22and .rotatably' mounted-upon the outer ends of 1 the trunnions 22 arerollers 23.- Secured to the lower end of the top movable section of thetower in line with the discharge end of the bucket or cage and disposedat opposite sides of such section are curved guide channels' 24 havingthe upper ends formed with vertical guide channels 25. The open sides ofthe channels confront each other and the lower ends of the curvedchannels 241 are disposed in line with the rollers 23 on the trunnions22, while formed integral with the rear side Walls of the verticalchannels 25 are curved arms 26, clearly illustrated in Fig. 6 of thedrawings. The frame'18 carrying the bucket or cage 19 is capable ofvertical sliding movement in the tower or shaft and as the bucket entersthe top inner section the rollers 23 ride into the channels 24 and theninto the channels 25 and as the rollers enter the channels 2d thearms'26 engage the tongues 20 and swing the latter inwardly against thesides of the bucket so as to relieve the bucket of the holding influenceof the lugs 21, thereby permitting the bucket to be swung to dumpingposition.

I bucket carrying frame 18, and the carrier 13 are, in this form of myinvention, under the control of drum and cable mechanism whereby suchframes and carrier .may be elevated and lowered. This drum and cablemechanism embodies a horizontal shaft 30 journaled in suitable bearingsmounted upon the base 1 and extending across such base and looselymounted upon the shaft 30 adjacent to the opposite ends thereof aredrums'31, 31, 32, 32 and 33. 33: and fixed to the shaft adjacent to eachof said drums is a ratchet wheel 34 adapted to be engaged by a pawl 35carried by the adjacent drum so that such drum may be fixed to the'shaftto rotate therewith when desired. Each drum is also formed with .aratchet wheel 36 at one edge thereof and codperating with the ratchetwheel 36 is a holding dog 37 whereby the drum may be held in adjustedposition succeeding the disconnecting thereof from the shaft 30. Securedto each drum 31, 33 and wrapped thereabout is one end of a cable 38 andthe other ends of the cables 38 are trained over sheaves 39 rotatablymounted upon yokes 40 pivotally connected to the respectlve verticalbars of the top innermost section at the upper end'of such section, andthen secured to stakes driven in the ground at suitable distances fromthe tower or shaft. These cables 38 act as guys to reinforce and bracethe tower and hold the latter rigid. Secured to each drum 32 and wrappedthereabout is one end i of a cable 41 and the other ends of the cables41 are trained over sheaves 42 carried by opposite beams 4 of the basesection,

under sheaves 43 carried by corresponding beams of the carrier frame 13,and then secured to said beams 4. By means of this construction, it willbe seen that when the holding dogs 37 of the drums 31 and 33 arereleased and the bawls 35 placed. in engagement with the respectiveratchet wheels 34. of such drum and the shaft 30 rotated, the guy cablesmay be loosened and tightened,

while the drums 32 may be revolved, upon the rotation of the shaft 30,to elevate and lower the carrier so that the tower may be built up andtaken down.

J ournaled in bearings carried by the base 1 and disposed above theshaft 30 is a short shaft 44 and mounted upon the shaft 44 is a drum 45.Connected to the drum 45 and trained thereabout is one end of a cable46. The other end of the cable 46 is trained over suitably arrangedguide sheaves 47 carried by the upper end of the top inner section andthen connected to the hopper carrying frame 27 so that the hoppercarrying frame may be elevated and lowered upon the rotation of the drum45 in one direction or the other. Arranged alongside of the shaft 44 andjournaled in bearings carried by the base is, a short shaft 47 andmounted-upon the short shaft 47 is a spur gear 48 and a spur pinion 49connected to the spur gear 48. The spur gear and pinion 48 and 49 arepreferably splined upon the shaft 47 and keyed upon the shaft 44 is aspur pinion 50 adapted to mesh with the 49 is out of engagement with thespur gear 7 51 and the shaft 44 may be rotated when the shaft 47 isrevolved.

J ournaled upon a shaft carried by the top barsof the uppermost innerssection is a sheave 52 arranged adjacent to the transverse center lineof the top inner section, while arranged behind the sheave 52- and inline therewith and carried by the top bars of the uppermost innersection is a shaft carrying a sheave 53, Mounted upon the base 1 is asheave 54. A cable 55 has one end trained under the sheave 54 and overthe sheaves 53 and 52 and then under a sheave 56 carried by thehorizontal bar of the bucket carrying frame 18 and is then secured tothe top of the uppermost inner sec tion. The other end of this cable 55is connected to a suitable hoisting drum so that when the, drum isrotated in one direction,

.the bucket or cage carrying drum will be elevated, while when thedirection of rota? tion of the drum is reversed, the cage may belowered.

It will be seen that I have provided an extensible tower which will befound particularly useful during the erection of buildings and the like,whereby mortar, bricks, etc., may be carried from the ground to the topof the structure'in the course of erection wherein the tower may bebuilt up from the bottom to increase the height-ct the tower in order tokeep pace with the increased height of'the structure under erection, andwherein the top of the tower will be maintained rigid and prevented fromswaying and wherein the guy wires supporting such top may be let out andtightened as the necessity demands. I

I claim:

1. The method of constructing a tower in sections which consists inraising a given section to a suitable height, and adding successivesections in vertical alinement therewith, below the section first named.

E2. The method of constructing a tower which consists in connecting, invertical manner a suitable height by hoisting apparatus,

placing another tower section beneath the elevated section and securingit to the latter, raising the sections so secured and placing a thirdsection thereunder, and connecting the third section with the secondnamed section. I 1

' In testimony whereof ll afiix my signature.

enonon n. rnrnon.

